Ribbon loom



March l2, 1940. w had-@Rus` 2,193,454

RIBBON LOOM Filed June 26, 1939 INVENTOR, Wntliam Huff/g' BY l ATTORNEY.

Patented Mar. 12, 1940v William Harris, Paterson, N. J.

Application June 26, 1939, Serial No. 281,113

6 Claims.

In a well-linown type of loom, as a ribbon loom., a rack reciprocatorylengthwise of and in the back-and-forth-movable batten drives theshuttles, as through pinions. A system to transmit reciprocation to therack includes flexible connections, as straps, and a rotary guidingmeans housed within with its axis substantially horizontal and crossingthe hatten and up to which said connections extend and around which 110in opposite directions they then extend and exist attached to the rack.Suitable means, removed from the hatten, as a suitably and constantlyrotated double-crank to which the connections are respectively connectedat opposite sides of its axis oi' rotation, imparts pulls to saidconneciziens independently of each other and in alternation, that is tosay, so that a pull is exerted on one connection or the other each timethe hatten structure is back and the war-p sheds '0 open to receive theshuttles.

The construction is such that, since said connections reach up into thespace in the batten in which said guiding means is located and sincesaid space is necessarily of limited width and taking into account theback and forth movements of the betten relatively to a guide for saidconnections having xed location, as on the licor near the lay-swords forsupporting the batten, the connections in their own back and forth 230travel wipe against the hatten and so become chafed and sooner or latercease to be any longer serviceable and have to be replaced by new ones.rlhe object of this invention is so to improve the construction of aloom of this type as to 5 eliminate all contact of the lengthwisetraveling connections with any relatively xed part of the sattenstructure and the consequent wear thereof.

in the drawing:

Fig. l is a side elevation of so much of the 40 improved loom as isnecessary for the purpose of illustrating the invention;

Fig. 2 is a. front elevation, partly in section, of that end of thehatten structure to which the invention is applied, showing certainparts 45 present in accordance with the invention; and

Fig. 3 shows the rack and said guiding means in section and portions ofsaid connections in elevation.

The batten structure includes, as usual, the

so hatten l, supported by lay-swords a so as to be movable forward or tothe right and back, and a top rail 2 parallel with the batteri and whichis supported b-y end walls, such as 3, and by the usual spaced blocks,not shown, in the grooves 55 of which the shuttles are guided and move.

CFI

In grooves il in the betten and rail is reciprocatory the rack whichhere comprises racks proper 5 in the respective grooves `and lappedplates 'd .secured to the respective racks proper land held Atogether bya clamp l and screws la. -5

'The mentioned system, including the rotary guiding means and theiiexible connections, is as follows: A cylinder t free to rotatearoundan axis substantially yhorizontal and crossing said batteri structurehere constitutes said guiding i0 means; it is jcurnaled on a shaft ilxed in brackets lil uf'hich are themselves fixed to the front and back`faces lof and upstand kfrom the hatten, ysaid shaft and brackets thusforming parts of the batteri structure. Straps ll consti t5 tute thesaid flexible connections. They extend in an up-and-down direction (heredownwardly) to said guiding .means and then around the same in oppositedirections and exist attached to the rack, as `at Ha. 2G

Means is .provided to maintain the connect-,ions clear of the battenstructure between the medium (to be referred to) which exerts pulls onthem and the guiding means t, thereby to eliminate wear of theconnections as they travel lengthwise in response to such pulls and alsopartake in theback and forth movements of said structure, as follows: Apair of independently rotative members is indicated at i3, each havingits axis extending lengthwise of the rack and hence crossing the axis ofthe .guiding means 8. For supporting these members the hatten structureincludes brackets i4 afxed to the back of the hatten and upstandingabove rail 2 and aixed 'to the brackets at l5 a shaft It on which 35said members are directly journaled, the latter being confined againstaxial displacement in any way, as by collars Il fast to the shaft. Thesaid members are oi' such diameter as to project forwardly beyond therail 2 and rearwardly well 40 beyond the back of the batten structure.

The connections extend up behind the batteri structure, then in bightsor bends over said members I3 and then down to guiding means t.

The medium for exerting pulls on said connections independently of eachother and alternately may be of well-known type, say cons-isting of theusual double-crank I8 to diametrically opposite points of which the endsof the connections are attached, the same being suitably journaled androtated constantly substantially as in the pat-ent to Sands, No.1,138,418. 2|] is suitable guiding means, asrollers journaled in a stand2l fixed to the floor near the lay-swords,

around which, between the double-crank and the members I3, theconnections extend.

So as not to chafe or override each other the portions of theconnections which reach from said members I3 to the guiding means 8should extend around the latter in diierent upright planes. Hence theconstruction is such that one member reaches further than the othercrosswise of the rack, as shown in Fig. 1; said members being herejournaled on a common axis, one is for this purpose formed of greaterdiameter than the other.

As will be evident, my construction avoids all contact of theconnections li with relatively fixed parts as they travel in response tothe pulls exerted thereon and partake of the back and forth movements ofthe batten structure, and it is also such as to avoid the strapsoverriding or chai'ing each other.

I do not wish to be limited to the precise construction herein shown,what I claim being:

l. In a loom of the class described, the combination of aback-and-forth-movable hatten structure, a shuttle-driving rackreciprocatory therein lengthwise thereof, a system to transmitreciprocation to the rack including fiexible connections and a rotaryguiding means journaled in said structure with its axis substantiallyhorizontal and crossing said structure and to which means saidconnections extend in an up-anddown direction and around which they thenextend and exist attached to the rack, means, removed from saidstructure, to exert pulls on said connections independently of eachother and alternately, and means to maintain said connections clear ofsaid structure between the lastnamed means and said guiding meansincluding two independently rotative members journaled each on an axisextending lengthwise of the rack and in peripheral engagement withwhich, respectively, said connections extend, one member reachingfurther than the other in one hori- Zontal direction crosswise of therack, whereby the portions of said connections which reach from saidmembers to said guiding means extend around the latter in diierentupright planes.

2. The combination set forth in claim 1 characterized by said membersbeing journaled on a common axis.

3. The combination set forth in claim 1 characterized by said membersbeing journaled on a common axis and being of different diameters.

4. In a loom of the class described, the combination of aback-and-forth-movable batten structure, a train of parts movable backand forth in said structure including a rack conned thereto to movelengthwise thereof and rotary means journaled in said structure with itsaxis crosswise thereof and substantially horizontal, iiexble connectionsextending in an up and down direction to and in opposite directionsaround said rotary means and connected to a part of said train, means,removed from said structure, to exert pull on the connectionsindependently of each other and alternately, and means to maintain saidconnections clear of said structure between the last-named means andsaid rotary means including two independently rotative members journaledeach on an axis extending lengthwise of the rack and in peripheralengagement with which, respectively, said connections extend, one memberreaching further than the other in one horizontal direction crosswise ofthe rack, whereby the portions of said connections which reach from saidmembers to said guiding means extend around the latter in differentupright planes.

5. The combination set forth in claim 4 characterized by said membersbeing journaled on a common axis.

6. The combination set forth in claim 4 characterized by said membersbeing journaled on a common axis and being of different diameters.

` WILLIAM HARRIS.

